984867684025 has 81 divisors (see below), whose sum is σ = 1291485799533. Its totient is φ = 745018281600.

The previous prime is 984867684007. The next prime is 984867684037. The reversal of 984867684025 is 520486768489.

The square root of 984867684025 is 992405.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 414546685609 + 570320998416 = 643853^2 + 755196^2 .

It is not a de Polignac number, because 984867684025 - 2¹³ = 984867675833 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 9561822124 + ... + 9561822226.

Almost surely, 2^984867684025 is an apocalyptic number.

984867684025 is the 992405-th square number.

984867684025 is the 496203-rd centered octagonal number.

It is an amenable number.

984867684025 is a deficient number, since it is larger than the sum of its proper divisors (306618115508).

984867684025 is an equidigital number, since it uses as much as digits as its factorization.

984867684025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 185794560, while the sum is 67.

The spelling of 984867684025 in words is "nine hundred eighty-four billion, eight hundred sixty-seven million, six hundred eighty-four thousand, twenty-five".